baber/WOPTO huggingface dataset:
Patent DE-2529676-A1 (DE)
Title: Thin chipboard panel covered with resin impregnated paper - preventing overcuring leading to destruction of chip structure
Inventor: HENNE THEODOR DIPL ING
IPC: B44C5/04
Filed: 1975-07-03
Abstract: Decorative laminated panel comprises a chipboard panel 1-5mm. thick with a heat-curable resin content of 8-35 wt. %; and a decorative paper layer impregnated with heat-curable resin. In addn. to the decorative paper layer, which is pref. impregnated with melamine resin, there may also be one or more sheets of soda kraft paper impregnated with phenolic resin. The panel is produced by curing the resin-impregnated chipboard, but not completely, and pressing it with teh decorative layer(s) at a pressure of 70-120 kp/sq. cm. and at temps. of 120-150 degrees C. Embossed press plates and bonding sheets may also be used in the mfr. of the panel to provide the decorative layer with spatial texturing. If the laminated panel is provided with the decorative paper layer on one side only, it may be provided with a sheet of paper on the other side.
Patent DE-2529983-A1 (DE)
Title: Multidirectional radiation therapeutic or cosmetic solarium appts. - with punctiform or long beam-emitters in collapsible tent
Inventor: KOCKOTT DIETER DIPL PHYS DR
IPC: A61N5/06
Filed: 1975-07-04
Abstract: The solarium apparatus emits infra red, ultra-violet and sunlight spectrum radiation using one or more long or punctiform beam emitters. A folding or collapsible tunnel tent (16) enclosing the patent's body limits the effective range of the emitted radiation and is arranged on a base support (14). Either the inside surface (28) or an external wall surface of the tent (16) in the beam path has a diffuse surface structure scattering the rays in the space about the patient's body. Pref. the farther the wall is away from the emitter the stronger is its diffuse scattering action. The tent (16) consists of semi-cylindrical mid-section (18) with two end walls with a long central beam emitter (22) inside and silver coated inner walls (28) as reflecting surfaces.
Patent DE-2530786-A1 (DE)
Title: Light guiding glass filaments - contg. core doped with less volatile substances than dopants in envelope
Inventor: DAKIN JOHN PHILIP DR
IPC: C03B37/018
Filed: 1975-07-10
Abstract: Prodn. of the filaments contg. a core and an envelope having different indexes of refraction comprises depositing on the inner side of a glass having consecutively increasing index of refraction, and then heating the tube and drawing until it collapses forming a filament. Method is improved in that at least the last of the deposited layers is doped with a substance less volatile than the dopants used in the preceding layers so that the maximum refraction occurs near the axis of the filament. A parabolic curve of the index of refraction in the glass filament is obtd, even if comparatively volatile dopants (such as P2O5) are used.
Patent DE-2531485-A1 (DE)
Title: Gas fired water heater with low water regulator - maintains constant water outlet temp. immediately after opening tap valve
Inventor: KEPPEL ERNST
IPC: F24H9/20
Filed: 1975-07-15
Abstract: Gas-fire water heater comprises a heat exchanger operated by a valve-controlled burner. A low-water regulator has a diaphragm chambeR, a Venturi, and a valve-controlled bypass pipe for the Venturi. The bypass valve (44) is biased by a spring (52) away from its seat (43) in the direction of lifting of the diaphragm (26), so that it follows diaphragm movement. The gas valve body and the bypass valve body each include a tapered region (50), and pref. also a cylindrical region (49) adjoining the sealing point. The bypass valve body pref. consists of a hexagonal profile (47) with a bore (57) through which extends a pin (54) with an extension (58). The end of the pin remote from the extension is provided with a spring ring (55) against which a plate (53) is supported under the action of the return spring (52).
Patent DE-2532939-A1 (DE)
Title: Telephone signalling system between main and PBX exchanges - inserts secondary signals between main signals marking beginning and end of dial pulses
Inventor: JAEGER HORST
IPC: H04Q3/62
Filed: 1975-07-23
Abstract: The signalling system, is connected between a main telephone exchange and a PBX. It can not only distinguish between signalling signals of different lengths but can also transmit other signals denoting long or short signals. 50 Hz AC is used for the main signalling and AF multiple-freq. signals for secondary signalling. When a dialling key is operated by the calling party, a main signalling signal is transmitted at the initial depression of the key and a main signalling signal at the end of the depression. The secondary signalling signal giving the authorisation of the calling party immediately follows the first or initial main signalling. This can also allow additional information to be transmitted during dialling.
Patent DE-2546874-A1 (DE)
Title: Semiautomatic digitalised opto:electronic system - employs electronic light pen pickup on reverse side of transparent screen to collect analogue data for digital conversion
Inventor: SCHUELE REINHOLD ING GRAD
IPC: G06K11/02
Filed: 1975-10-18
Abstract: The digitalised system relates to the conversion of graphical input in an analogue form into digital computer processable data. The picture elements from a process, computer controlled, are recorded by a photo-electric pick-up device, typically by an electronic pen or search-coil, which is attached to the rear side of a transparent working surface. The graphical display data may be charts, plans, technical illustrations etc. Alphanumeric data may also be transcribed in the form of (x, y) coordinates on a graphical grid display. A memory unit is included in the system to retain the data prior to further processing.
Patent DE-2602335-A1 (DE)
Title: Steel coatings sprayed onto aluminium alloy substrates - using intermediate layer of nickel-phosphorus alloy to obtain good adhesion
Inventor: YONEMURA TSUGIO
IPC: B05D1/08
Filed: 1976-01-22
Abstract: In a process for providing a substrate with a sprayed coating (II) firmly bonded to the substrate, an intermediate layer (I), which can be pptn. hardened and to which coating (I) adheres, is applied to the substrate followed by heat-treatment and then the spraying of (II) onto (I). (I) is pref. applied by chemical means, and is pref. a nickel-phosphorus alloy which is heated using a predetermined temp. and time followed by natural cooling in air to form a solid bond with the substrate, and then (II) applied. Method is used e.g. for sprayed coatings for the tops of pistons used in internal combustion engines, to provide high resistance to thermal shock and increase piston life; on discs used in disc brakes to obtain high thermal conductivity and wear-resistance; or on the bores of aluminium cylinder blocks for engines where the block is not fitted with cylinder liners.
Patent DE-2606514-A1 (DE)
Title: Quality control of dewatered filter cake - by altering filter band speed to give uniform feed to dryer
Inventor: ARAI IZUMI
IPC: B01D37/00
Filed: 1976-02-18
Abstract: Water is removed from a dust slurry and involves continuously checking the quantity of cake after filtration to regulate the offtake from the filter used so that a uniform quantity is taken off and fed into the subsequent stage. A previously specified concentration of the slurry mixture is maintained. This concn. should be in the range 35 to 45% by wt. Several types of dust which can be from dry collectors are added to the slurry to maintain a given concn. A drum type filter is used, the speed of which is controlled by checking the quantity of filter cake produced. For use with dust collection systems on blast furnaces and converters in the iron and steel industry. Wide variation in rate and moisture content cake fed to a drying process means that significant variations in the thermal capacity have to be made. A much more uniform control is achieved, esp. where this is part of a pelletising and sintering process, by giving the dryer a uniform, steady feed.
Patent DE-2612352-A1 (DE)
Title: Easily assembled roll film cassette - uses distance piece between cap and cover leaving gap for insertion of simple prising tool when film is to be developed
Inventor: GERSCH JOSEF DIPL PHYS
IPC: G03B17/30
Filed: 1976-03-24
Abstract: The film cassette cover (1) has a narrow ridge (4) at the end, on the side where the cap (6) is to fit. The ridge (4) fits into a groove (7) in the cap. A distance piece (8) on the cap fits into a gap (2) in the ridge to preserve a space (at 10) between the cap and the cover. A simple tool (12), pushed into this space, prises the cap off when the film is to be processed. The cap may be held down by studs (5) pressed in the ridge, or the cap and cover may be of plastic and welded together.
Patent DE-2619588-A1 (DE)
Title: Drinks crate movement control mechanism - employs motorised gate unit at end of roller track with electrically operated limit switches
Inventor: SCHAEUFELE EUGEN
IPC: G07F11/58
Filed: 1976-05-04
Abstract: The equipment comprises a slightly canted roller track (1) to support a series of crates (2a, 2b, 2c) containing bottles of drinks. Movement of the crates forward is controlled by an openable sliding gate (3) controlled by a toothed rod (4) actuated by a motorised p wl wheel (5). The travel of the gate is limited by limit switches (7, 8) and switching coins (9, 10). To prevent premature movement of the crate immediately preceding that nearest the gate, a tiping gantry arm (18, 19) is provided which engages the side of the crate during movement of the first crate through the gate.
Patent DE-2626435-A1 (DE)
Title: Gas blast circuit breaker - has compact linkage moving blast piston initially in opposite direction to switch rod during break action
Inventor: BADON AIME
IPC: H01H33/915
Filed: 1976-06-12
Abstract: The gas blast switch has its gas blast piston (28) linked to the moving contacts drive rod (16) by a special linkage (30). This linkage determines the pistons motion relative to the drive rod during the switch's break action such that the piston moves initially in the opposite direction and then in the same direction as the drive rod. The linkage is located in the space enclosed by the piston's housing (22). The compact linkage may consist of rods or of a rack and pinion arrangement.
Patent DE-2627575-A1 (DE)
Title: Laminated stator for split pole electrical machine - is heated during mfr. and sintering resin powder is applied to form insulation
Inventor: LENZ ERNST
IPC: H02K15/12
Filed: 1976-06-19
Abstract: The machine is pref. a split pole machine. A series of through holes are formed in the lamination stack near the pole surfaces and pref. between two adjacent slots. These holes accommodate a set of winding pins. The lamination stack is heated and synthetic resin powder is applied and sintered onto the stack while it is still hot. Then the stator is wound without further insulation, and the winding pins are left in the stator.
Patent DE-2628778-A1 (DE)
Title: Glycol ethers prepn. from alkylene oxide and alcohol - using alkali(ne earth) metal catalyst obtd. from distn. of residue of process using aq. alkali
Inventor: LAEMMLE GEORGE JOSEPH
IPC: C08G65/26
Filed: 1976-06-26
Abstract: Process comprises reacting an alkylene oxide and an alcohol at 30-350 degrees C and 30-300 psig in the presence of a catalyst comprising alkali(ne earth) metal cations. The catalyst is an anhydrous high boiling residual liq. contg. alkali(ne earth) metal alcoholate obtd. from the above process in which alkali(ne earth) metal is used (usually an aq. hydroxide soln.) after isolation of the glycol ether from the reaction prod. The products are widely used e.g. as solvents. Normally the catalyst used is conc. aq. alkali(ne earth) metal hydroxide. The presence of any water results in hydrolysis of the alkylene oxide to form glycols, which are very difficult to separate from the ether products. The residue from the distn. is usually discarded. By employing the unwanted residue as catalyst, the presence of water is avoided simplifying the process giving purer prods. The catalyst may be recycled enabling continuous prodn.
Patent DE-2631256-A1 (DE)
Title: Recoil blocking lever for air gun - blocks compression cylinder recoil by friction of lever against screw surface
Inventor: KLOSS PETER
IPC: F41B11/646
Filed: 1976-07-12
Abstract: The cocking mechanism includes a compression cylinder held in a sleeve. The spring loaded blocking lever is held on the compressions cylinder during cocking and the cylinder recoil is prevented. The blocking lever ensures continuous blocking and no sudden movement occurs when cocking mechanism is released during cocking. The blocking lever (12) has friction surface (13) which slides on a corresponding friction face (14) of the compression cylinder caused by the adhesive friction based on the wedging effect. The friction surface is a screw (14) in the compression cylinder (5). Its surface is exposed through a longitudinal slot in the wall for engagement with the blocking lever (12).
Patent DE-2634735-A1 (DE)
Title: Regeneration of mineral sludges contg. soluble salts - by mixing with bitumen to agglomerate the particles and sepg. the water from the mastic
Inventor: HERMENT ROBERT
IPC: C02F1/54
Filed: 1976-08-02
Abstract: A bitumen, esp. a bitumen emulsion, is added to the sludge and the mixt. is stirred to agglomerate the particles. The aq. phase is then sepd. from the resulting mastic. The max. amt. of soluble salts initially present in the aq. phase to a value at which the salts remain dissolved in the aq. phase. The process is esp. useful for treating jarosite contg. sludges resulting from the hydrometallurgical prodn. of zinc. Jarosite is a complex of formula NH4 2 Fe6(SO4)4 (OH)12 . The sludge generally contains 70% solid materials and 30% residual water, with a content of about 2 wt.% (on dry sludge) of soluble zinc salts in the form of Zn++ ion. Using the process, up to 90% or more of the zinc can be reclaimed. The mastic contg. the pptd. jarosite is useful as an additive to paving asphalt to increase the hardness. In an example, a jarosite sludge contg. 193g solids, 87g water and 4g Zn++ in the aq. phase, was mixed at 60 degrees C with a bitumen emulsion contg. 54g bitumen and 20g water. 73g water was recovered contg.
Patent DE-2702593-A1 (DE)
Title: Free standing metal rocking frame for hammock - has tubular rocking supports with telescopic adjustment permitting saving of space when not in use
Inventor: HOLSTEIN KURT
IPC: A45F3/24
Filed: 1977-01-22
Abstract: A free standing tubular metal rocking support is for a net hammock (8). The lengthwise rocking supports (1, 2) are strengthened by transversal metal bars or tubes (3, 4). The lengthwise supports (1, 2) are telescopically adjustable. The hammock itself is suspended from vertical tubular supports (5, 6) welded to the frame. Adjustable mounting feet can be provided on either the long members (1, 2) or transverse bars (3, 4) so that when they are directed downwards the swinging movement is inhibited. The hammock (8) has cross-pieces (12) at each end. The telescopic or screw-in arrangement ensures easy transport and saving of space when not in use.
Patent DE-2704019-A1 (DE)
Title: Retractable blade knife for handyman - has trapezium shape blade mounted in two part housing in plastics slide
Inventor: PRACHT GUENTHER
IPC: B26B5/00
Filed: 1977-02-01
Abstract: The trapezium shaped knife blade has a number of holes (8, 10) and notches (7, 9) with which it can be located in a slide piece (6). The knife blade is symmetrical and can be reversed when one side has worn out. The slide piece is made from elastomer or plastic. Two spring legs (15, 16) are integral with the slide and clamp the side in the housing. One of the spring legs can be pushed down by pressing on a button (12). This allows the slide to be moved in the housing. The housing is made in two halves as e.g. a die casting which are clamped together by a screw.
Patent DE-2705814-A1 (DE)
Title: Electrokinetic or electro=osmotic migration of liquids - produced using very low voltage to prevent destruction of electrodes
Inventor: TENGE HANS-WERNER
IPC: E04G21/24
Filed: 1977-02-11
Abstract: Prodn. of electrokinetic or electro-osmotic migration of polar or polarized liquids in or on porous and/or semi-permeable solids consists of keeping the electrode voltage between corres. anodes and cathodes connected to a common voltage source below the limiting value, at which the relevant liquid, acting as an electrolyte, becomes electrolytically decomposed. Pref. electrode voltage is a controlled d.c. voltage. More specifically, the d.c. voltage is regulated to plus-or-minus 20% (esp. within plus-or-minus 1%) and has a harmonic content of superimposed a.c. voltage of less than plus-or-minus 25%, esp. less than plus-or-minus 5 (plus-or-minus 1)%. Used for desalination of seawater, for drying or wetting porous and semi-permeable materials, or for drying out building materials such as brickwork and masonry. By regulating the electrode voltage as described, corrosion and passivation of the electrodes is virtually eliminated and a very long electrode life is obtd.
Patent DE-2711400-A1 (DE)
Title: Spinning turbine spindle mounting - has a ring between the bearings with sprung tubes to support the bearings and give them slight radial resilience
Inventor: HERBERT WERNER DIPL ING
IPC: D01H4/12
Filed: 1977-03-16
Abstract: In the mounting for the spindle of a spinning turbine there is a ring mounted between the two bearings, to hold two sprung or slitted tubes which range out from the ring at one side. A radial bearing is at the end of one tube while the other tube carries a spiral deep groove cup bearing at the end. The bearings are radially resilient within narrow limits and reassert themselves in a dampening action.
Patent DE-2714297-A1 (DE)
Title: Regeneration of ion exchange resins - using carbonic acid to precipitate calcium carbonate which is flushed out
Inventor: SONTHEIMER HEINRICH PROF DIPL
IPC: B01J49/12
Filed: 1977-03-31
Abstract: Weakly acidic ion exchange resins which have become partly charged with Ca ions are regenerated by carbonic acid to ppte. calcium carbonate in a multi-phase fluidised bed. This has four phases (resin, calcium carbonate, water and gaseous CO2). The regeneration is done at a constant cation exchange resin/water volume ratio. Gaseous CO2 or a CO2 contg. gas is fed through continuously as a fluidising medium and recycled round the reactor. The pptn. of CACO3 is accelerated by the addn. of CaCO3 particles and/or the recycle of the regenerating liquor. The volume ratio of resin/water should be between 1:1 to 1:3 pref. 1:1.3. The process is carried out batchwise with resin loading followed by regeneration. Used for regenerating ion exchange resins used to remove Ca ions from liq. streams. Process does not push the equilibrium position unfavourably for the acid side as would be necessary for Na loaded resins since for this a redn. of H+ ion occurs. Also the system uses considerably less regenerating liq., the pptd. CaCO3 being settled out or filtered off and the liq. recycled. This reduces the effluent problem.
Patent DE-2715594-A1 (DE)
Title: Signal processing network for fire and burglar alarms - incorporates threshold and encoding logic circuits
Inventor: ROHRBACHER HANS DIPL ING
IPC: G08B29/10
Filed: 1977-04-07
Abstract: A simple signal processing network uses linear amplifier comparators, for processing the signals derived from fire or burglar alarm transducers. It checks against defined thresholds the conditions of 'alarm' short circuit and 'open circuit' and generates corresponding output signals. The basic network comprises three comparator circuits (22, 23, 24) to the inputs of which the incoming signals (A, U-K) may be derived directly from the comparator (22, 23, 24) outputs or via suitable logic gates (33, 34) depending on the function required. An alternative form of the network, which combines the open and short circuit conditions to give a single fault output signal (U-K) may be used.
Patent DE-2715766-A1 (DE)
Title: Print machine with corona discharge to impression cylinder - operates using spike electrodes decoupled to limit short circuit current
Inventor: KNOPF FRANZ
IPC: B41F9/00
Filed: 1977-04-07
Abstract: In a print machine a web is fed between an electrically conductive printing cylinder (1) and an impression cylinder (6) made of insulating material. To reinforce the printing pressure, there are provided, along the impression cylinder, electrodes (15, 16) which produce a corona discharge on to the impression cylinder. The electrodes each comprises a body (30) of insulating material on which are mounted discrete metal spikes (25) connected to a source of D.C. The supply to the spikes is de-coupled so that, in case of a short circuit, the current flowing through the spikes is less than the critical discharge current for a given atmosphere.
Patent DE-2727113-A1 (DE)
Title: Cladded yarn mfr. - using balloon of fine bonding thread to give a wound wrapping round a thread of strand core
Inventor: MAAG FRITJOF DIPL ING DR
IPC: D02G3/38
Filed: 1977-06-16
Abstract: In the mfr. of cladded yarn, where a thread or a strand of a general parallel orientation is covered by a winding of a fine bonding thread, the thread or strand to be covered is led as a balloon round the spool of bonding and cladding thread. The bonding thread is led from the spool so that, at the point where it starts to wind round the core, its tension is less than that of the core. The process reduces the yarn mass to be twisted, as only the short stretch of core material directly in the balloon zone is rotated, allowing simpler machine parts to be used with increased twisting speeds.
Patent DE-2733574-A1 (DE)
Title: Rotary piston IC engine - has two coaxial opposed rotating pistons in one cylinder and with scroll faces shuttling free piston between them
Inventor: FRANK HANS
IPC: F03C99/00
Filed: 1977-07-26
Abstract: The rotary engine or pump has two coaxial pistons (12, 13) in a common cylinder (10). These are rotated in opposite directions by gearing (17, 18) from a common shaft (19) turning the piston rods (15), with a reversing wheel in one train. Scroll faces on the pistons are matched by others on a free piston (14) between them. Scroll pitch (S) equals the travel of the free piston; scroll ends are joined by matching flat sloping surfaces (e.g. 23), so that the free piston reverses direction every half rotation. Inlet/outlet openings (30, 31) in the casing are halfway along the scroll pitch. Flow is controlled by the main shaft using cam (32) operated valves (34).
Patent DE-2735797-A1 (DE)
IPC: E01B3/28
Filed: 1977-08-09
Abstract: The railway sleeper has, on opposite sides in the direction of the rail, chamber-like cutouts (16, 18, 22, 24) running in the sleeper direction so that the sleeper has a double-T profile in the region of the cutouts. Resting on the lower flange of this profile is an additional ballast load so that there is improved positional stability of the sleeper and thus of the sleeper grid. As a result of the chamber-like design of the cutouts or their delimitations in the longitudinal direction of the rail and their filling with ballast, increased transverse forces acting on the rail grid can be absorbed. <IMAGE>
Patent DE-2740108-A1 (DE)
Inventor: PEISSARD ARNOLD S DIPL ING
IPC: B21D51/16
Filed: 1977-09-06
Abstract: A nozzle of elongate shape, comprising an inlet and an outlet orifice (2, 7) for a fluid and a channel (3) connecting these two orifices, is produced from a small tube (1) in the following process steps: pressing the small tube (1) together at one end (4), connecting the pressed-together parts of the small tube and making the outlet orifice (7) at the desired location. This process allows an efficient production of auxiliary nozzles for air-jet weaving machines. <IMAGE>